i88 Field Museum of Natural History — Zoology, Vol. IX. 



tl Bill of Bronzed Grackle. 



General plumage, metallic green, purple, and bronze. 



Quiscalus quiscula ceneus. 

 Bronzed Grackle. 

 See No. 233. 



General plumage, black; a patch of scarlet red on the shoulder. 



Agelaius phceniceus {adult male). 

 Red-winged Blackbird. 

 See No. 226. 



General plumage, black, more or less streaked and marked with 

 buff, brown, and dull white; traces of more or less red on the shoulder 

 (lesser wing coverts). Agelaius phceniceus, and races {immature) . 



Red-winged Blackbird. 

 See Nos. 226, 226a. 



Adult birds entirely lustrous black; no red 



shoulder patch. Immature birds have the upper 

 parts more or less rusty brown and the feathers on 

 the under parts, tipped with brown. 



Euphagus carolinus {male, and immature). 



Rusty Blackbird. 

 See No. 231. 



General plumage, dark slate or brownish slate color; under parts, 

 plumbeous slate color. Euphagus carolinus {female, in summer). 



Rusty Blackbird. 



See No. 231. 



